public void AddQuadTrees(NativeList <ulong> addList, NativeArray <float> heightMap)
{
TerrainQuadTree.QuadTreeNode **tree = (TerrainQuadTree.QuadTreeNode * *)addList.unsafePtr;
int length = addList.Length;
NativeArray <TerrainPanel> panel = new NativeArray <TerrainPanel>(length, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
TerrainPanel *panelPtr = panel.Ptr();
for (int i = 0; i < length; ++i)
{
tree[i]->listPosition = referenceBuffer.Length + i;
int heightIndex = notUsedHeightmapIndices[notUsedHeightmapIndices.Length - 1];
tree[i]->panel.heightMapIndex = heightIndex;
notUsedHeightmapIndices.RemoveLast();
heightMapBuffer.SetData(heightMap, 0, heightIndex * (meshSize + 1) * (meshSize + 1), heightMap.Length);
panelPtr[i] = tree[i]->panel;
}
clusterBuffer.SetData(panel, 0, referenceBuffer.Length, length);
panel.Dispose();
referenceBuffer.AddRange(addList);
}
public void RemoveQuadTrees(NativeList <ulong> removeList)
{
void ErasePoint(TerrainQuadTree.QuadTreeNode *node)
{
node->listPosition = -1;
notUsedHeightmapIndices.Add(node->panel.heightMapIndex);
}
int length = removeList.Length;
TerrainQuadTree.QuadTreeNode **tree = (TerrainQuadTree.QuadTreeNode * *)removeList.unsafePtr;
int targetLength = referenceBuffer.Length - length;
int len = 0;
if (targetLength <= 0)
{
for (int i = 0; i < length; ++i)
{
ErasePoint(tree[i]);
}
referenceBuffer.Clear();
return;
}
for (int i = 0; i < length; ++i)
{
TerrainQuadTree.QuadTreeNode *currentNode = tree[i];
if (currentNode->listPosition >= targetLength)
{
referenceBuffer[currentNode->listPosition] = 0;
ErasePoint(currentNode);
}
}
NativeArray <int2> transformList = new NativeArray <int2>(length, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
int2 *transformPtr = transformList.Ptr();
len = 0;
int currentIndex = referenceBuffer.Length - 1;
for (int i = 0; i < length; ++i)
{
TerrainQuadTree.QuadTreeNode *treeNode = tree[i];
if (treeNode->listPosition < 0)
{
continue;
}
while (referenceBuffer[currentIndex] == 0)
{
currentIndex--;
if (currentIndex < 0)
{
goto FINALIZE;
}
}
TerrainQuadTree.QuadTreeNode *lastNode = (TerrainQuadTree.QuadTreeNode *)referenceBuffer[currentIndex];
currentIndex--;
transformPtr[len] = new int2(treeNode->listPosition, lastNode->listPosition);
len++;
lastNode->listPosition = treeNode->listPosition;
referenceBuffer[lastNode->listPosition] = (ulong)lastNode;
ErasePoint(treeNode);
}
FINALIZE:
referenceBuffer.RemoveLast(length);
if (len <= 0)
{
return;
}
if (len > removebuffer.count)
{
removebuffer.Dispose();
removebuffer = new ComputeBuffer(len, sizeof(int2));
}
removebuffer.SetData(transformList, 0, 0, len);
transformShader.SetBuffer(0, ShaderIDs._IndexBuffer, removebuffer);
transformShader.SetBuffer(0, ShaderIDs.clusterBuffer, clusterBuffer);
ComputeShaderUtility.Dispatch(transformShader, 0, len, 64);
transformList.Dispose();
}
